JPS56137601A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS56137601A JPS56137601A JP4102180A JP4102180A JPS56137601A JP S56137601 A JPS56137601 A JP S56137601A JP 4102180 A JP4102180 A JP 4102180A JP 4102180 A JP4102180 A JP 4102180A JP S56137601 A JPS56137601 A JP S56137601A
- Authority
- JP
- Japan
- Prior art keywords
- cobalt
- recording medium
- nickel
- sum
- copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 239000010941 cobalt Substances 0.000 abstract 4
- 229910017052 cobalt Inorganic materials 0.000 abstract 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 3
- 229910052802 copper Inorganic materials 0.000 abstract 3
- 239000010949 copper Substances 0.000 abstract 3
- 229910052759 nickel Inorganic materials 0.000 abstract 3
- 230000032683 aging Effects 0.000 abstract 2
- 230000008021 deposition Effects 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/656—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing Co
Landscapes
- Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE:To obtain a recording medium suitable to high-density recording of high resolution so that a system of spinodal resolution type or aging deposition type by providing each composition consisting of copper, nickel and cobalt as essential components at a prearranged ratio and forming a prearanged thin sheet with this component. CONSTITUTION:A thin sheet of less than 1mm. of thickness is formed with an alloy under the following composition formula of copper, nickel and cobalt as essential components and part of cobalt substituted with iron. The formula is [CuxNiy (CouFev)z]pMqo. But the sum of x, y and z in the formula is 100wt%, x 10- 80wt%, y 10-50wt% and z (100-x-y)wt%. In addition, the sum of u and v is 100wt% and v 0-50wt%. M indicates more than one kind of additive elements other than copper, nickel, cobalt and iron, and the sum of p and q is 100wt% and q 0-20%. Then it is so arranged that a recording medium may have a system of spinodal resolution type or aging deposition type and be suitable to high-density recording.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4102180A JPS56137601A (en) | 1980-03-29 | 1980-03-29 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4102180A JPS56137601A (en) | 1980-03-29 | 1980-03-29 | Magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56137601A true JPS56137601A (en) | 1981-10-27 |
| JPS6325687B2 JPS6325687B2 (en) | 1988-05-26 |
Family
ID=12596731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4102180A Granted JPS56137601A (en) | 1980-03-29 | 1980-03-29 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56137601A (en) |
-
1980
- 1980-03-29 JP JP4102180A patent/JPS56137601A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6325687B2 (en) | 1988-05-26 |
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